drm_exec_prepare_array(9)

💅 drm_exec_prepare_array(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — yes we're in the kernel docs now, and honestly? we're thriving. this one's all about drm_exec_prepare_array, which is literally the helper that prepares a whole array of objects for you. no cap. 🫶

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✨ NAME ✨

drm_exec_prepare_array — the helper to prepare an array of objects 🌸

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🎀 SYNOPSIS 🎀

int drm_exec_prepare_array (struct drm_exec *exec , struct
       drm_gem_object **objects , unsigned int num_objects , unsigned int
       num_fences );

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🦋 ARGUMENTS 🦋

• exec — the drm_exec object holding the state, she's the main character here 👑
• objects — array of GEM objects to prepare, the whole squad 🍓
• num_objects — how many GEM objects are in that array, like, the headcount
• num_fences — number of fences to reserve on each GEM object 🔥

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💖 DESCRIPTION 💖

So what it does is prepare all the GEM objects in an array — the entire lineup, not just one — and it aborts on the first error, like "nope, we're done here" 💀. After locking each GEM object, it reserves num_fences on it. periodt. 💅

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🔥 RETURN 🔥

• -EDEADLOCK — on contention (it's giving drama 😭)
• -EALREADY — when the object is already locked
• -ENOMEM — when memory allocation failed
• 0 — for success ✨ slay

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🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/drm_exec.c Overview(9), drm_exec_init(9), drm_exec_fini(9), drm_exec_cleanup(9), drm_exec_lock_obj(9), drm_exec_unlock_obj(9), drm_exec_prepare_obj(9) — go read them, iykyk 📚

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and that's the page, bestie! 🧚 this gorgeous little manual comes from ./drivers/gpu/drm and it's dated October 2026 — literally iconic, no notes 💜🎀